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BOSTON MARATHON 2023

Sophia Robertson

Bib: 17587•F

AB

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 13%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:42
Rank: #8146
Start → 5K
22:42 | 7:18/mi
10K· 6.21 mi
44:29
Rank: #7482 (+664)
5K → 10K
21:47 | 7:01/mi
15K· 9.32 mi
1:06:20
Rank: #7221 (+261)
10K → 15K
21:51 | 7:02/mi
20K· 12.43 mi
1:28:08
Rank: #6883 (+338)
15K → 20K
21:48 | 7:01/mi
Half· 13.11 mi
1:32:38
Rank: #6748 (+135)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:48:53
Rank: #6276 (+472)
Half → 25K
16:15 | 6:42/mi
30K· 18.64 mi
2:09:26
Rank: #5490 (+786)
25K → 30K
20:33 | 6:37/mi
20M
2:18:14
Rank: #5080 (+410)
30K → 20M
8:48 | 6:29/mi
21M
2:24:57
Rank: #4754 (+326)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:29:36
Rank: #4566 (+188)
21M → 35K
4:39 | 6:13/mi
23M
2:37:34
Rank: #4193 (+373)
35K → 23M
7:58 | 6:22/mi
24M
2:43:43
Rank: #3934 (+259)
23M → 24M
6:09 | 6:09/mi
40K· 24.85 mi
2:49:02
Rank: #3663 (+271)
24M → 40K
5:19 | 6:13/mi
25.2M
2:51:21
Rank: #3567 (+96)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:57:34
Rank: #3350 (+217)
25.2M → Finish
6:13 | 6:06/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:32:38
Pace7:04 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:24:56
Pace6:29 /mi
📊Negative Split: 8.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2022:427:1822:42
7:18
-
10K
6.21 mi11:35:0744:297:1021:47
7:01
-0:17
15K
9.32 mi11:56:581:06:207:0721:51
7:02
+0:01
20K
12.43 mi12:18:461:28:087:0621:48
7:01
-0:01
Half
13.11 mi12:23:161:32:387:044:30
6:36
-0:25
25K
15.53 mi12:39:311:48:537:0116:15
6:42
+0:06
30K
18.64 mi13:00:042:09:266:5720:33
6:37
-0:05
20M
20.00 mi13:08:522:18:146:558:48
6:29
-0:08
21M
21.00 mi13:15:352:24:576:546:43
6:43
+0:14
35K
21.75 mi13:20:142:29:366:534:39
6:13
-0:30
23M
23.00 mi13:28:122:37:346:517:58
6:22
+0:09
24M
24.00 mi13:34:212:43:436:496:09
6:09
-0:13
40K
24.85 mi13:39:402:49:026:485:19
6:13
+0:04
25.2M
25.20 mi13:41:592:51:216:482:19
6:43
+0:30
Finish
26.22 mi13:48:122:57:346:476:13
6:06
-0:37

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:06 /mi

Average Pace

6:47 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:24

45% of race

Time at Steady Pace

1:14:28

42% of race

Time at Slower Pace

22:42

13% of race

Average Pace: 6:46 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:13:2022:427:1822:42
7:18
#8146
10K
6.21 mi11:35:0744:297:1021:47
7:01
#7482
15K
9.32 mi11:56:581:06:207:0721:51
7:02
#7221
20K
12.43 mi12:18:461:28:087:0621:48
7:01
#6883
Half
13.11 mi12:23:161:32:387:044:30
6:36
#6748
25K
15.53 mi12:39:311:48:537:0116:15
6:42
#6276
30K
18.64 mi13:00:042:09:266:5720:33
6:37
#5490
20M
20.00 mi13:08:522:18:146:558:48
6:29
#5080
21M
21.00 mi13:15:352:24:576:546:43
6:43
#4754
35K
21.75 mi13:20:142:29:366:534:39
6:13
#4566
23M
23.00 mi13:28:122:37:346:517:58
6:22
#4193
24M
24.00 mi13:34:212:43:436:496:09
6:09
#3934
40K
24.85 mi13:39:402:49:026:485:19
6:13
#3663
25.2M
25.20 mi13:41:592:51:216:482:19
6:43
#3567
Finish
26.22 mi13:48:122:57:346:476:13
6:06
#3350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8146106210626780(Top 25%)694(Top 6%)694(Top 14%)
10K6.21 mi3.10 mi7482+664849+213849+2136914(Top 26%)730(Top 6%)730(Top 15%)
15K9.32 mi3.11 mi7221+261799+50799+506780(Top 25%)694(Top 6%)694(Top 14%)
20K12.43 mi3.11 mi6883+338707+92707+926092(Top 23%)545(Top 5%)545(Top 11%)
Half13.11 mi0.68 mi6748+135680+27680+273476(Top 13%)176(Top 2%)176(Top 4%)
25K15.53 mi2.42 mi6276+472580+100580+1003389(Top 13%)173(Top 2%)173(Top 4%)
30K18.64 mi3.11 mi5490+786427+153427+1532027(Top 8%)89(Top 0.8%)89(Top 2%)
20M20.00 mi1.36 mi5080+410371+56371+561377(Top 5%)65(Top 0.6%)65(Top 1%)
21M21.00 mi1.00 mi4754+326324+47324+471164(Top 4%)57(Top 0.5%)57(Top 1%)
35K21.75 mi0.75 mi4566+188308+16308+161328(Top 5%)69(Top 0.6%)69(Top 1%)
23M23.00 mi1.25 mi4193+373264+44264+441009(Top 4%)53(Top 0.5%)53(Top 1%)
24M24.00 mi1.00 mi3934+259244+20244+20901(Top 3%)49(Top 0.4%)49(Top 1%)
40K24.85 mi0.85 mi3663+271213+31213+31714(Top 3%)39(Top 0.3%)39(Top 0.8%)
25.2M25.20 mi0.35 mi3567+96201+12201+12988(Top 4%)51(Top 0.4%)51(Top 1%)
Finish26.22 mi1.02 mi3350+217185+16185+161010(Top 4%)51(Top 0.4%)51(Top 1%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6780

Females

694

F18-39

694

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6914

Females

730

F18-39

730

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6780

Females

694

F18-39

694

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6092

Females

545

F18-39

545

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3476

Females

176

F18-39

176

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3389

Females

173

F18-39

173

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2027

Females

89

F18-39

89

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1377

Females

65

F18-39

65

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1164

Females

57

F18-39

57

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1328

Females

69

F18-39

69

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1009

Females

53

F18-39

53

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

901

Females

49

F18-39

49

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

714

Females

39

F18-39

39

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

988

Females

51

F18-39

51

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1010

Females

51

F18-39

51

Passing Analysis

Category:
Athletes Passed
4892
Passed By
96
Net Change
+4796
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8146
5K → 10K70844+664#8146#7482
10K → 15K30342+261#7482#7221
15K → 20K3468+338#7221#6883
20K → Half1350+135#6883#6748
Half → 25K4720+472#6748#6276
25K → 30K7860+786#6276#5490
30K → 20M4100+410#5490#5080
20M → 21M3260+326#5080#4754
21M → 35K1880+188#4754#4566
35K → 23M3730+373#4566#4193
23M → 24M2590+259#4193#3934
24M → 40K2710+271#3934#3663
40K → 25.2M960+96#3663#3567
25.2M → Finish2192+217#3567#3350
TOTALS489296+4796
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing